Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Staff Engineer - Web Platform

£31.8 - £36.5 per hourEstimated

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences.

Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk for one single system that is designed to meet the needs of modern day support teams.

Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Driven by our core values, we push boundaries, build with speed and intensity, and relentlessly deliver incredible value to our customers.

What’s the opportunity?

Fin's websites, including  fin.ai , are strategic growth levers for the company — powering storytelling, brand, experimentation, and product discovery. As our Staff Engineer, you will shape the technical direction and architectural evolution of our web platform and systems. You’ll act as the technical leader across our marketing and growth web surfaces. This is a cross-functional engineering leadership role, partnering with marketing, analytics, design, data science, and engineering teams — to ensure our web stack is modern, performant, measurable, and delightful to build on. You’ll operate with a high degree of autonomy and will be accountable for setting the long-term technical strategy for the team and executing against it.

What will I be doing?

As a senior technical leader, you will:

  • Own and evolve the architecture of Fin's web platform.
  • Define the long-term technical strategy for the web team, focusing on scalability, performance, developer productivity, observability, and system reliability.
  • Collaborate closely with marketing, design, analytics, and data science stakeholders to ensure the platform supports their goals with accuracy, performance, and agility.
  • Lead and influence the design and implementation of MarTech systems for event tracking, attribution, funnel reporting, A/B testing infrastructure, and more.
  • Partner with engineers across web, infrastructure, and data to create a high-quality, cohesive technical ecosystem.
  • Mentor and elevate engineers across the team and organisation — providing guidance on architecture, data modeling, system design, and engineering best practices.
  • Set the standard for technical excellence in reliability, maintainability, code quality, and operational readiness.
  • Provide technical leadership and insight to Engineering Managers, Product Managers, and executive stakeholders - communicating risks, trade-offs, and opportunities clearly.
  • Contribute hands-on to the codebase — leading by example and helping unblock and accelerate key projects.

What skills do I need?

We’re looking for someone who brings deep technical expertise, cross-functional leadership, and strong domain knowledge in web systems. You should have:

  • 8+ years of software engineering experience.
  • Experience in a high-scale growth-focused web environment.
  • A track record of technical leadership and influencing technical direction across multiple teams or departments.
  • Deep expertise in Next.js and the React ecosystem.
  • Experience with headless CMS platforms such as Contentful or Sanity - including content modeling, migration, and multi-site architecture. 
  • Experience with infrastructure-as-code (Terraform) , cloud platforms ( AWS, CloudFront, S3), and deployment platforms (Vercel). 
  • Experience designing or operating experimentation infrastructure - A/B testing frameworks, event instrumentation, attribution systems and tools like Eppo. 
  • Strong understanding of web analytics and data instrumentation - experience with event tracking SDKs, Google Tag Manager, or similar. 
  • Comfortable working in and supporting full-stack codebases - even if this role is not UI-heavy, a solid frontend architecture awareness is valued.
  • Experience operating in continuous delivery environments with an emphasis on incremental, high-quality shipping. 
  • Exceptional communication skills and a history of collaborating with cross-functional teams (product, marketing, analytics, design, etc.)
  • A mentorship mindset — proven ability to raise the bar for engineering excellence across a team or organization.

#LI-Hybrid

At Fin, we want to give people what they need to do the best work of their careers. Our benefits and programs are designed to support your health and wellbeing, your family, your time away from work, and your financial future. Offerings vary by location in line with local practices and requirements.

Learn more about working at Fin and the benefits we offer at .

Policies 

Fin has a hybrid working policy. We believe that working in person helps us stay connected, collaborate easier and create a great culture while still providing flexibility to work from home. We expect employees to be in the office at least three days per week.

We have a radically open and accepting culture at Fin. We avoid spending time on divisive subjects to foster a safe and cohesive work environment for everyone. As an organization, our policy is to not advocate on behalf of the company or our employees on any social or political topics out of our internal or external communications. We respect personal opinion and expression on these topics on personal social platforms on personal time, and do not challenge or confront anyone for their views on non-work related topics. Our goal is to focus on doing incredible work to achieve our goals and unite the company through our  core values .  

Fin values diversity and is committed to a policy of Equal Employment Opportunity. Fin will not discriminate against an applicant or employee on the basis of race, color, religion, creed, national origin, ancestry, sex, gender, age, physical or mental disability, veteran or military status, genetic information, sexual orientation, gender identity, gender expression, marital status, or any other legally recognized protected basis under federal, state, or local law.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Staff Engineer - Web Platform in London vacancy
  •  ...Treasure AI is the agentic experience platform built to acquire, retain, and grow your...  ...Your Role: Treasure AI is hiring a Staff Forward Deployed Engineer dedicated to some of our most...  ...dynamic offer delivery within seconds of a web or app event. In this role you will define... 
    Web
    Permanent
    Hybrid working
    On-site
    Night shift
    Day shift

    Treasure AI

    London
    more than 2 months ago
  • £86k - £114k per annumEstimated
     ...experience — end to end, moment to moment, across every screen, platform, and partner integration. Our mission is to make listening...  ...personal, reliable, and unmistakably Spotify.  As a Senior Staff Engineer, you'll advance how our systems power partner experiences at scale... 
    Suggested

    spotify

    London
    25 days ago
  • £83k - £107k per annumEstimated
     ...be, keep reading. About the Role We're looking for engineers in the Senior to Staff levels to build the future of autonomous testing. No matter...  ...with property-based testing or fuzzing Comfortable with web technology (browsers, HTML, Javascript, CSS) Experience... 
    Web
    Full-time
    On-site

    antithesis

    London
    18 hours ago
  • £69k - £91k per annumEstimated
     ...life with HMND‑01 Alpha - our rapidly developed humanoid platform now running in real industrial pilots - and we’re growing...  ...it even further. About The Role We are looking for a Staff Robotics Control Engineer to join our Control Team in London and lead the evolution... 
    Suggested
    Full-time
    On-site

    Humanoid

    London
    13 days ago
  • £110k - £150k per annum

     ...production daily, tackles highly ambiguous engineering challenges, and works at the cutting edge...  ...of AI capabilities. They are seeking a Staff Engineer to serve as one of the most...  ...initiatives. Technical Profile Modern Web Stack Expertise: Deep experience working... 
    Web
    Long-term contract
    Full-time
    Visa sponsorship
    On-site
    Work from home
    5 days/week
    Flexible hours
    Afternoon shift

    MLabs

    London
    a month ago
  • £45k - £58k per annumEstimated
     ...looking for an experienced Senior QA / Test Engineer to drive quality assurance and production...  ...across a complex, AI-enabled digital platform. You will define and execute test strategies...  .... Good technical understanding of web applications, APIs and modern application... 
    Web

    UBDS Group

    London
    4 days ago
  • £120k per annum

     ...Role: Lead UI Engineer (Mobile / Web Platform) Client: Elite Technology Firm Compensation: Up to £120k Base Salary + Bonus + Package Location: London (Hybrid) Overview This firm is an elite technology firm that uphold extremely high tech standards. They... 
    Web
    Hybrid working

    Hunter Bond

    London
    a month ago
  • $80k - $120k per annum

     ...under 20 minutes. We're looking for a Frontend Staff Engineer to take deep ownership of our data platform - the engine behind products at the intersection of...  ...finance, and tax. You'll work across a modern React web application and a high-performance distributed data-... 
    Web
    Remote

    Koinly

    London
    14 days ago
  • £39k - £53k per annumEstimated
     ...We are seeking a Senior QA Engineer to establish and lead quality assurance across a large and growing web platform. This is a critical role responsible for introducing structure, consistency, and confidence into the release process. Key Responsibilities: Quality Assurance... 
    Web
    Permanent
    Full-time

    TransPerfect

    London
    a month ago
  • £100k - £130k per annum

     ...close. We're building the proactive money platform that makes it easy for people to smartly...  ...The Role At Plum we’re looking for engineers who are passionate about both technology...  ...and engagement. We are looking for a Staff Engineer for our First & Last Mile group,... 
    Long-term contract
    Full-time
    Temporary
    Remote
    Flexible hours
    2 days/week

    Plum Fintech

    London
    a month ago
  • £108k - £140k per annumEstimated
     ...Ebury can accelerate your career so you can shape the future. Staff Engineer (Identity Team) London Office - Hybrid: 4 days in the office...  ...ownership of large, mission-critical services, products, and platforms. We are committed to identifying and nurturing future... 
    Hybrid working
    On-site
    Work from home

    Ebury

    London
    a month ago
  • £84k - £111k per annumEstimated
     ...the systems that power how restaurants and brands grow on our platform. From campaign creation to optimization and forecasting, we develop...  ...to unlock the next phase of growth. We’re looking for a Staff Engineer to join the Wolt AdTech & Promotions organization, who can... 

    Wolt - English

    London
    more than 2 months ago
  • £70k - £95k per annumEstimated
     ...systems. We are seeking an Autonomy Software Integration & Test Engineer to support development, integration, testing, and deployment of...  ...integration, and real-world flight testing across unmanned and autonomous platforms.  The ideal candidate is comfortable writing and debugging... 
    On-site

    shieldai

    London
    9 days ago
  • £140k - £180k per annum

     ...Staff Windows PowerShell Engineer – Quant Trading £140,000-180,000 plus benefits and bonus Hybrid Quant Capital is urgently looking for a Windows...  ...and automation focus. As an Engineer you will focus on platform engineering designs, maintaining the firm’s operating systems... 
    Hybrid working

    Quant Capital

    London
    more than 2 months ago
  • £85k - £112k per annumEstimated
     ...About The Role and Team As a  Staff/Senior QPU Layout Engineer , you will drive the physical implementation and verification for a cutting-edge quantum processor platform. You’ll be a go-to expert for full-chip and block-level layouts, ensuring designs are reliable,... 
    Permanent
    Flexible hours

    QUANTUM MOTION TECHNOLOGIES LIMITED

    London
    more than 2 months ago
  • £81k - £105k per annumEstimated
     ...thousands of daily active users rely on the platform to screen hundreds of millions of names...  ...any time. Team Mission: Ripjar’s Engineering team builds software products that make the...  ...Copilot . What you'll be doing: Staff Engineers at Ripjar are experts in one or... 
    On-site
    Remote
    Flexible hours

    Ripjar

    London
    a month ago
  •  ...As a Staff Software Engineer, you will take on the hardest technical problems across Performativ’s platform and turn complexity into systems that scale. You will move to where things break, slow down, or do not scale, and fix them. You will also help evolve how we build by... 
    Immediate start

    Performativ

    London
    more than 2 months ago
  • £500 per day

     ...The firm is seeking a Senior Security Proxy Engineer to join on a 6-month hybrid contract based...  ...and maintain enterprise Proxy and secure web gateway services, managing policies for...  ...supporting enterprise Proxy or secure web gateway platforms, with strong knowledge of TLS,... 
    Web
    Hybrid working
    London
    more than 2 months ago
  • €105k - €125k per annum

     ...system for mobile services—a platform that lets tech companies embed...  ...bringing together early-stage engineers, product builders, and business...  ...beautiful experiences across our web and mobile products. You’ll...  ...to considering mid, senior and staff-level candidates , which may... 
    Web
    On-site
    Remote
    Work from home

    Product, Design

    London
    more than 2 months ago
  • £56k - £73k per annumEstimated
     ...Network Engineer – Trading & Electronic Trading Infrastructure Join...  ...and operate high-performance platforms. Joining MARGO means contributing...  ...and load balancers (e.g. LTM, Web Gateways) · Monitoring and...  ...? Motivated? Apply on our website or at staff.****@*****.***... 
    Web
    Long-term contract
    Permanent

    margo-group

    London
    more than 2 months ago
  • £87k - £113k per annumEstimated
     ...The role  Wayve is seeking a Robotics Software Engineer for our Online Calibration team to support scaling across our autonomous vehicle...  ..., operating continuously on constrained, hardware-accelerated platforms. Working across calibration, state estimation, robot software, hardware... 
    Hourly pay
    Full-time
    Hybrid working
    On-site
    Work from home

    wayve

    London
    18 hours ago
  • £85k - £110k per annumEstimated
     ...that defines your career!   The role  Wayve is seeking a Staff Robotics Engineer, Localisation to lead the technical development of our...  ...work across robotics, calibration, controls, sensor, vehicle-platform and embedded-software teams to ensure localisation is robust... 
    Hourly pay
    Full-time
    Hybrid working
    On-site
    Work from home

    Wayve

    London
    2 days ago
  • £46k - £59k per annumEstimated
     ...Full-Stack Software Engineer, Model Development Platform As a Full-Stack Software Engineer within Wayve’s Model...  ...technology stack, creating intuitive web applications and the scalable backend...  ...coherent, well-integrated systems. At the Staff level, you will also guide broader... 
    Web

    wayve

    London
    18 hours ago
  • £50k - £65k per annumEstimated
     ...Title: Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React) Corporate...  ...accessibility (WCAG 2.1 AA+). Drive performance engineering: rendering optimization, virtualization...  ..., and front end observability (e.g., Web Vitals, error tracking). Ensure secure... 
    Web
    Long-term contract
    On-site
    Flexible hours

    Bank of America Corporation

    Bromley, Greater London
    1 day ago
  • £70k - £80k per annum

     ...combining advertising technology, data and platform integrations across complex online...  ...You will work extensively with APIs, web technologies and front-end implementations...  ...You will work closely with Product and Engineering teams to diagnose issues, identify solutions... 
    Web
    Permanent
    On-site

    Sphere Digital Recruitment

    City of London, Greater London
    11 days ago
  • $30 - $60 per hour

     ...Dorsey . Position: QA / Software Engineering Reviewer – Browser Test Validation...  ...based testing workflows for AI-generated web applications . Assess technical feasibility...  ...details about the interview process and platform information, please check: For any help... 
    Web
    Remote job
    Summer work

    Mercor

    London
    28 days ago
  • £65k - £86k per annumEstimated
     ...Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the...  ...office. These include frontend and backend engineers, AI research scientists, and others from...  ...Overview The responsibilities of our Platform team include building and maintaining all... 
    Web
    On-site

    Speechify

    London
    13 days ago
  • £50k - £66k per annumEstimated
     ...integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing,...  ...at: C3 AI is seeking   Forward Deployed Engineers . As a Forward Deployed Engineer, you will be engineering full-stack AI-driven web applications on the C3 AI Platform, working... 
    Web
    Full-time

    C3 AI

    London
    15 days ago
  • £50k - £65k per annumEstimated
     ...digital, trust-driven marketplace built for collectors. Our platform integrates grading and authentication, vaulting, and...  ....   About The Role We’re seeking a Senior QA Engineer to elevate quality across our web, mobile, and backend platforms. You don’t need a collectibles... 
    Web

    Arena Club

    London
    more than 2 months ago
  • £76k - £100k per annumEstimated
     ...than a decade, Vercel has shaped how the web is built. As the team behind Next.js, v0,...  ...operated by agents. We are building the platform for that future, trusted by companies like...  ...are looking for a   Senior Forward-Deployed Engineer   to join our Professional Services team.... 
    Web
    Long-term contract
    Remote
    Work from home

    Vercel

    London
    more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Staff Engineer - Web Platform. Be the first to apply!